Abstract: |
Statistics shows that transients produced by lightning or momentary links with external objects, have produced
more than 80% of faults in overhead lines. Reclosing of circuit breaker (CB) after a pre-defined dead time is very
common however reclosing onto permanent faults may damage the power system stability and aggravate severe
damage to the system. Thus, adaptive single-phase auto-reclosing (ASPAR) based on investigating existing electrical
signals has fascinated engineers and researchers. An ASPAR blocks CB reclosing onto permanent faults and allows
reclosing permission once secondary arc is quenched. To address the subject, there have been many ASPARs
techniques proposed based on the features trapped in a faulty phase. This paper presents a critical survey of
adaptive auto-reclosing schemes that have hitherto been applied to EHV transmission lines. |
Key words: Adaptive auto-reclosing, Protection, EHV transmission lines, Temporary faults, Permanent faults |
DOI:10.1186/s41601-019-0133-5 |
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